GazeNet: A lightweight multitask sclera feature extractor

The sclera is a recently emergent biometric modality with many desirable characteristics. However, most literature solutions for sclera-based recognition rely on sequences of complex deep networks with significant computational overhead. In this paper, we propose a lightweight multitask-based sclera...

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Main Authors: Matej Vitek, Vitomir Štruc, Peter Peer
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Alexandria Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1110016824014273
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author Matej Vitek
Vitomir Štruc
Peter Peer
author_facet Matej Vitek
Vitomir Štruc
Peter Peer
author_sort Matej Vitek
collection DOAJ
description The sclera is a recently emergent biometric modality with many desirable characteristics. However, most literature solutions for sclera-based recognition rely on sequences of complex deep networks with significant computational overhead. In this paper, we propose a lightweight multitask-based sclera feature extractor. The proposed GazeNet network has a computational complexity below 1 GFLOP, making it appropriate for less capable devices like smartphones and head-mounted displays. Our experiments show that GazeNet (which is based on the SqueezeNet architecture) outperforms both the base SqueezeNet model as well as the more computationally intensive ScleraNET model from the literature. Thus, we demonstrate that our proposed gaze-direction multitask learning procedure, along with careful lightweight architecture selection, leads to computationally efficient networks with high recognition performance.
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institution Kabale University
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publishDate 2025-01-01
publisher Elsevier
record_format Article
series Alexandria Engineering Journal
spelling doaj-art-62aa6c7e56d44f8ebf433cc6f41aef962025-01-29T05:00:18ZengElsevierAlexandria Engineering Journal1110-01682025-01-01112661671GazeNet: A lightweight multitask sclera feature extractorMatej Vitek0Vitomir Štruc1Peter Peer2Corresponding author.; University of Ljubljana, Ljubljana, SloveniaUniversity of Ljubljana, Ljubljana, SloveniaUniversity of Ljubljana, Ljubljana, SloveniaThe sclera is a recently emergent biometric modality with many desirable characteristics. However, most literature solutions for sclera-based recognition rely on sequences of complex deep networks with significant computational overhead. In this paper, we propose a lightweight multitask-based sclera feature extractor. The proposed GazeNet network has a computational complexity below 1 GFLOP, making it appropriate for less capable devices like smartphones and head-mounted displays. Our experiments show that GazeNet (which is based on the SqueezeNet architecture) outperforms both the base SqueezeNet model as well as the more computationally intensive ScleraNET model from the literature. Thus, we demonstrate that our proposed gaze-direction multitask learning procedure, along with careful lightweight architecture selection, leads to computationally efficient networks with high recognition performance.http://www.sciencedirect.com/science/article/pii/S1110016824014273BiometricsOcular biometricsSclera recognitionLightweightFeature extraction
spellingShingle Matej Vitek
Vitomir Štruc
Peter Peer
GazeNet: A lightweight multitask sclera feature extractor
Alexandria Engineering Journal
Biometrics
Ocular biometrics
Sclera recognition
Lightweight
Feature extraction
title GazeNet: A lightweight multitask sclera feature extractor
title_full GazeNet: A lightweight multitask sclera feature extractor
title_fullStr GazeNet: A lightweight multitask sclera feature extractor
title_full_unstemmed GazeNet: A lightweight multitask sclera feature extractor
title_short GazeNet: A lightweight multitask sclera feature extractor
title_sort gazenet a lightweight multitask sclera feature extractor
topic Biometrics
Ocular biometrics
Sclera recognition
Lightweight
Feature extraction
url http://www.sciencedirect.com/science/article/pii/S1110016824014273
work_keys_str_mv AT matejvitek gazenetalightweightmultitasksclerafeatureextractor
AT vitomirstruc gazenetalightweightmultitasksclerafeatureextractor
AT peterpeer gazenetalightweightmultitasksclerafeatureextractor